Rotary-base discharging device for cement furnaces and the like



May 27 1924,

- E. CHAUDIRE ROTARY BASE DI/SCHARGING DEVICE FOR CEMENT FURNACES AND THE LIKE Filed July 14, 1922 im l n" ml Patented May Z7, 1924.

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ETIENNE CHAUDIEEE, 0E LIEGE, BELGIUM.

ROTARY-BASE DSCI-IARGING- DEVICE EDRv CEE/IENT FURNACES AND THE LIKE.

Application filed July 14, 1922.

To all 107mm t may concern.'

Be it known that I, ETIENNE CHAUDIRE, a subject of the King of Belgium, residing at Liege, 16 Avenue de lEXposition, Belgium, have invented certain new and useful Improvements in Rotary-Base Discharging Devices for Cement Furnaces and the like, of which the following is a specitication, reference being had therein to the accompanying drawing.

The present invention relates especially to an automatic and continuous discharging device for cement and other like products, and is applicable to furnaces having a central core. The improved device is so arranged as to offer least possible resistance to operation and to ensure a regular fall of the material within the furnace, which allows a finished product of regular burning to be obtained.

The discharge obtained by previously known devices is often defective and the operation of the furnace is almost always irregular. Moreover, with materials such as cement or other like products, .which are presented almost always in a relatively hard agglomerated mass, it is indispensable to subject the mass to concussion in order to be able to cause it to leave the furnace.

The object of the present invention to obtain a discharging device which effects the regular evacuation of the products, both of those which are at the 'centr-e of the furnace and of those which are at the periphery.

For this purpose, according to the invention the agglomcrated cement which presents itself in the form of blocks of a certain size, is .reduced to relatively small pieces, at its arrival in the vicinity of the inclined' base, by means of knives or cutters which are detachable during working and arranged in the said furnace-base`r the latter being impressed with a continuous rotary motion.

For the purpose of obtaining a tirst division of the above mentioned agglomerated mass, fixed separating knives or cutters, directed downwardly, may with advantage be arranged on the lower periphery of the central core of the furnace at a certain height above the base.

The accompanying drawings represent by way of example one form of carrying out the invention. In these drawings,

Serial No. 574,932.

Figure l represents in perspective a par-4 vand inclined planes 4 int-ended for the discharge of the products. During their descent through the furnace, the said products, when nearing the cooling Zone, are first divided by knives 5, Xed to the lower portion of the central core 6 of the furnace and directed upwardly. The mass of material thus broken up comes to rest upon the inclined base divided into sectors 8, 8. At the junction of two adjacent sectors 8, 8', there are arranged detachable knives 9, which by the rotation of the base are caused to attack the material located upon it, and reduce it to pieces of suitable size, these being evacuated as they arev .formed by way of the openings 2 and the inclined planes 4. f For this purpose the said openings 2 are arranged facing the position intended to receive the discharged materials. i

The operation of the base 8 is effected by gearing through the'toothed ring l0 and it rotates upon rollers 1l. -Thejrollers 11 have flanges l2 against which the edge of the base bears, while the said base rests against the central core by means of a ball bearing 13 protected by an annular angle ring 14, the horizontal flange of which extends somewhat beyond the inner edge of the base.

ln order to be able to secure the-cutters to the base so that they shall be kept perfectly rigid during the discharge, the cutters 9 are arranged between two angle bars l5 and 16 secured together by spacers 17 of suitable shape, placed between the said angle bars 15 and 16 and two adjacent knives. The spacers 17 (see Figure 4) are fixed to the angle lbars by bolts 18 passing through the said angle bars and the spacers, while the cutters 9 are kept in place by bolts 19 engaged in openings at the lower ends of the cutters in holes through the lugs 20 pro vided for this purpose at the lower corners of spacing blocks.

The arrangement renders the cutters de- Cil tachable during working, which in particular allows them to be `adjusted duringl work and to be replaced with ease when worn out.

Having now particularly described and ascertained the nature of my said invention and in what manner the saine is to be performed, I declare that what l claim is l. A vertical furnace for cement and the like, comprising a central core and a rotary base sloping downwardly from said core, a plurality of knives fixed to said core and projecting therefrom, and a number of sets of knives mounted in said base and projecting beyond the upper surface thereofl` said sets being radially arranged and the knives being removable from below said base. y 2. A vertical furnace for cement and the like, comprising a central core and a rotary base sloping downwardly from said core, a plurality of knives fixed to said core and having their cutting edges extending downwarolly and outwardly of said core, and a plurality of radially arranged sets of knives mounted in said base and projecting vertically from the upper surface thereof.

3. A vertical furnace for cement and the like, comprising a central core and a rotary base sloping downwardly from said core, a plurality of knives fixed to said core and having their cutting edges extending downwardly and outwardly of said core and lo cated substantially in axial planes of said core, and a plurality of radially arranged sets of knives mounted in said base and proj ecting from the upper surface thereof.

4. A vertical furnace for cement and the like, comprising a central core and a rotary base rotatable on the axis of said core and sloping downwardly therefrom, a plurality of radially projecting' knives fixed to said core above said base having their cutting edges extending downwardly and outwardly of said core, and a plurality of upwardly projecting knives removably and adjustably mounted in said base.

5. ln a vertical furnace for cement and the like, a core fixed axially of the furnace, a base rotatable on the axis of said core, said base being formed with a plu ralit-y of radial slots, angle irons fixed to the under surface of said base parallel and adjacent the edges of said slots, the downwardly extending flanges of said angle irons being opposed and forming channels registering witli said slots respectively, a plurality of spacers in each of said channels fixed to said fianges, and knives between said spacers adjustably and removably fixed thereto.

G. YIn a vertical furnace for cement and the like, a core fixed axially of the furnace, a base rotatable en the axis of said core substantially above the foot thereof` said base beingformed with. a plurality of radial slots, angle irons fixed to the under surface of said base parallel and adjacent the edges of each of said slots and having opposed downwardly extending` flanges forming channels in registry with said slots, a plurality of spacers in said channels fixed to said flanges, said spacers being provided with downwardly extending` lugs at their ends, knives between said spacers -liaving cutting edges projecting above said base, and removable bolts passing` through said lugs and knives, whereby said knives are removable and adjustable from below said base.

fn testimony whereof I' hereunto aflix my signature.

ETENNE CHAUDHQRE. lllitnesses Banania, GvoNNn Ruin., 

